# Gemini 4 Carbon

> Google's newest and strongest Gemini, announced on 28 October 2026 and the leader of the independent index at 59. Google is rolling it out in stages, starting with security partners.

- Maker: Google (https://ai.google.dev/gemini-api/docs/models)
- Type: Reasoning
- Artificial Analysis Intelligence Index: 59
- Context window: not listed
- Output speed: not listed
- Scores checked 30 October 2026 at https://artificialanalysis.ai/leaderboards/models

## Where to use it through an API

Not on the public Gemini API yet. Google first gives it to a small group of security partners and has not published a model id or a date for everyone else. It joins the app when Google opens the API.

## Use it with every other AI at once

MultiScreenAI (https://www.multiscreenai.com) puts Gemini 4 Carbon on one screen next to ChatGPT, Claude, Gemini and 300+ models: one message goes to every panel, and a timed, blind test mode shows which answers best. Free during the beta with your own API keys.
AI agents and coding harnesses (Claude Code, Codex, Cursor, Gemini CLI) can ask Gemini 4 Carbon and other models at once through the MCP server at https://www.multiscreenai.com/api/mcp/ai; setup: https://www.multiscreenai.com/mcp